Re: 800 tt vs. Speed 12 You're comparing what? And what Viper racecar did have +700 hp in that GT championship you're refering to? I'd like to see a Speed 12 racecar vs. Team Oreca Viper for instance...then will see if the speed 12 will "kill" the Viper...Besides the Speed 12 is about 300 - 400 kilos lighter than the Viper.